Revolving teeter-board.



R. BARRETT.' REVOLVING TESTER. BOARD.

APPLICATION FILED JULY 10, 1908.

Patented onze, 1909.

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R. BARRETT.

REvoLvING TBETBR BOARD n APPLIGATION FILED JULY 10, 1908.

Patented Oct. 26, 1909.

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R. BARRETT. REVOLVING. TEETER BOARD. APPLIOATION FILED JULY 1o, 190s.

Patented Oct. 26, 1909.

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Inventar:

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UNITED STATES `FATEN T OFFICE.

ROY BARRETT, OF PALIVIYRA, NEW YORK, ASSIGNOR 0F ONE-THIRD TO WILLIAM S. LORD AND ONE-THIRD T0 GEORGE R. KINGSTON, BOTH 0F ROCHESTER, NEW YORK.

REVOLVING TEETER-BOARI).

Specification of Letters Patent.

Patented Oct. 26, 1909.

Application filed July 10, 1908. Serial No. 442,856.

To all whom it may concern:

Be it known that I, ROY BARRETT, of Paimyra, in the county of Wayne and State of New York, have invented a new and useful Improvement in Revolving Teeter-Boards, which improvement is fully set forth in the following specification and shown in the accompanying drawings.

My invention belongs to the general class of devices and structures employed for the recreation and amusement of people at picnic grounds or pleasure resorts, more particularly forthe use of children, it being also adapted for use indoors as in play rooms, or on verandas, lawns and in similar places, the structure consisting of a revolving toeter-board to be occupied by two persons facing each other.

This device or structure comprises a pedestal or standard supporting a board for holding the riders, one at each of its overhanging ends, the board being normally horizontal and resting upon two bearings upon the standard but which may be teetered or given seesaw motions during which itshifts from one bearing to thel other alter- 4 nately as the vertical swingings or oscillations' of the board take place, during which oscillations and shifting upon its bearings the board also climbs upward along the standard to higher elevations. Besides the oscillating motions and the climbing of the board, it may also revolve descendingly around and along the standard as a center, the board being provided with a pair of grooved wheels or rollers for rolling downward along circular inclines or spiral tracks alternated around the upper portion of the standard which tracks constitute the two bearings upon which the board rests and ti ts.

Vertical operating levers with horizontal handles and foot rests at their respective ends are provided for the teeterboard, one near either end, for the use of the riders by means of which they may teeter or oscillat'e the board and so cause it to climb step by step up the spiral bearings of the standard. A stop for the descent of the board is provided on the standard, below the spiral inclines, for receiving the board and arresting both its downward and revolving motions.

Other objects and advantages of the invention will be brought out and made to appear in the following description and particularly pointed out in the appended claims, reference being had to the accompanying drawings which, with the reference numerals marked thereon, form a part of this specification.

Figure 1 is a side elevation of the revolving teeter-board as in operation, parts being shown in various positions by full and by dotted lines. Fig. 2 is a side elevation of one of the operating levers, detached. Fig. 3 is a side sectional elevation of parts at the upper end of the standard the section being as on the vertical dotted line a in Fig. 8. Fig. 4 is a plan of the structure, the board being shown in two positions by full. and by dotted lines. Fig. 5 is a side elevation of the duplex sleeve and some associated parts, part-s being vertically sectioned on the dotted line Z) in Fig. 4. Fig. 6 is a side elevation of a portion of the vertical shaft or standard lshowing the carrying wheels resting upon the opposite inclined tracks or bearings, parts being broken away. Fig. 7 is a plan of parts beneath the board, further showing the rod connections for the operating levers, one of the latter and the side straps of the sleeve being horizontally sectioned. Fig. 8 is a sidel elevation of the board and upper parts of the structure parts being broken away and shown in various positions by full and by dotted lines and the sleeve centrally longitudinally sectioned. Fig. 9 is a view looking upward from beneath, the standard being transversely sectioned on the dotted line o in Fig. 8. Figs. 1, 2 and 4; are drawn to a scale about oneeighth size; Figs. 3 and 7 one-fourth size; Figs. 5, 8 and 9 one-third size, and Fig. 6 one-half size.

Referring to the parts shown, 1 is a pedestal or standard preferably circular in cross section, provided at its lower end with horizontally extended parts or feet 2, Figs. 1 and 4, to rest upon the ground or floor for supporting the standard. The lower part 3 of the standard is enlarged, as shown, and metal braces l are employed to hold the part 3 and the feet 2 rigidly at right angles with each other, angle irons 33 being also einployed to better secure the parts together. Above the part 3 the standard is smaller in diameter and provided, for a distance, with a pair of similar spiral tracks or circular inclines 5 6, Figs. 1, 3, 6 and 8, in efl'ect composing a double pitched thread. These spiral tracks are rigidly secured to, or may be integral with, the standard, as shown in Fig. 6, they being preferably rectangular in cross section. Above the tracks 5 and 6 the standard 1 is provided with a series of equal longitudinal strips 7 as of wood, preferably four in number, equally spaced around the standard, best shown in Figs. 4 and 8, eX- tending practically to the top of the standard, these strips being rounded on their outer surfaces and projecting laterally so that the diameters of the standard measured through opposite strips are equal and substantially the same as the diameter of the spiral tracks 5 and 6.

Upon the standard and resting upon the spiral tracks `5 6 by means presently described, is mounted a member or board 8 formed in two equal but separated sections 9 and 10 these sections being rigidly joined in a plane and as a single board by vertical, longitudinal side members or ties ll-see Figs. 1, 3, 4, 5, 8 and 9-secured by fastening bolts 12. A duplex sleeve 13, Figs. 1, 3, 4, 5, 8 and 9, with upper and lower component parts 34 and 35 somewhat widely separated, is provided to encircle or inclose the upper portion of the standard 1 the two parts of the sleeve being connected and joined as in a single piece by a pair of oppositely disposed'vertical side straps or bars 14 made rigid with the two parts 34 and 35, as shown. The part 34 of the sleeve, occupies the rectangular space 15 between the separated ends of the two sections 9 and 10 of the board, as clearly shown in Figs. 1, 4, 8 and 9, in which elevated position said part 34 covers and isxkept concentric with the standard 1 by the longitudinal members 7, above described.

The tie pieces 11, with the board 8, are held to turn or swing in vertical directions on pivot bolts 16, best shown in Fig. 5, piercing the members 11 and having tapered or conical heads 17 in bearings in the side straps 14 upon which heads the toeter-board as a whole may seesaw or tilt, separating washers or thin parts 13 being inserted between the parts 11 and the side straps 14.

0n the under surfaces of the two members 9 10 of the board 8 are secured a pair of plates 19, Figs. 3, 8 and 9, with hinge joints 20 holding downwardly projecting or pendent members 21 each carrying a grooved wheel22 at its lower' end. The plates or parts 19 are on opposite sides of the standard 1 with their hinged ends 20 projecting toward t-he standard and beneath the opening 15, and the pendent parts 21 incline toward the standard 1 su'tliciently to cause the wheels 22 to overhang and rest upon the two spiral tracks 5 and 6 respectively, as clearly shown in Figs. 6 and 8. Flat springs 23, clearly shown in Figs. 3 and 8, are severtically through openings 25 in the end Y sections 9 and 10 of the teeter-board 8, and held to swing upon horizontal pivots 26 in said sections. These levers are provided at their upper ends with crossfliandles or hand rests 27 and at their lower ends with transverse foot rests 28, best shown in Fig. 2, the levers being in positions for the convenient use of the riders seated on the eXtreme ends of the board sections 9 and 10. The levers 24 are each connected with the lower member 35 of the two-part sleeve 13 by tie-'rods or connectors 29, Figs. 1 and 7, these rods being joined with eye-pieces 30 secured on opposite sides of said member 35. These tie-rods are normally slightlyinclined, as shown, and Yby means of' them and the'levers 24 the riders are enabled to tilt the teeteri board 3 as indicated by the dotted positions shown in Figs. l andi?. j oscillating of the vseat board 8 isjeftected in the following manner: Observing,lto illusrThis teetering yor trate, the parts at the left of the standard 1Y f and 32, the igure taking the form shown by dotted lines abovev the rod29. 1n these positions oit' the parts the left end of the rod 29 is materially raised and the partY 9 of the board also raised to the inclined position 9 the part 10 being simultaneously depressed to the position 10, this shifting of the position of the board 8 directly resulting from the tendency of the rod 29 and the adjacent side of the quadrilateral between the angles 31 and 26 Vtogether tofapproach a straight line and so increase the distance between the points or angles 26 and 32. The increasing of this distance can take place only by the rising or upward tilting of the part 9 of the f ing, that is to say, on the spiral track, the

pivot bolts 16 with the contiguous parts correspondingly rise along the standard. On account of this upward motion when the board teeters the coacting parts move easily upon one another and act harmoniously, there being no straining or cramping of the parts.

lWhile the rider seated at 9 is thus acting to eifect this tilting of the board the other one at the eXtreme end of the section 10 acts to depress his end of the board, by pushing the handles 27 of the lever 24: forward and drawing backward with his feet against the foot rests 28. This shifting of the parts brings the angles 26 and 32 of the quadrilateral on the right side ot the standard, nearer together which results in depressing the portion 10 of the board to the positionlO. Opposite exertions of the two riders will tilt the board 8 in the contrary direction or to the inclined position indicated by 92 and 102. lVhen the board is thus tilted one way and the other the grooved wheels 22, Figs. 6 and 8, are alternately lifted from one spiral track to another, as above stated and shown in Fig. 8, causing the board to climb upward along the sides of the standard, as stated. When, also, these efforts to teeter the board cease at any time, and the occupants sit quietly the board will, form the action of gravity, commence to revolve, as indicated in Fig. 4;, and so descend along the standard. This tilting of the board by the riders may take place at any time whether it below or high, and if it be done while the board is revolving and descending both motions will be quickly arrested and the board will move upward along the standard, as stated. When the board is at its lowest position or in its normal place of idleness the lower end of the sleeve 13 rests upon the upper end of the part 3 of the standard 1 as a stop, the board being horizontal. In use when the board is in this horizontal position of rest it is mounted by the riders, one at either end, with their hands and feet in place on the parts of the operating levers 24. Then, by alternately swaying the levers, as above described, the board will climb to the top of the standard or until the wheels 22 reach the upper end of the spiral tracks 5 and 6. If the riders then cease operating the levers and allow them to remain vertical and the board horizontal the latter will commence to revolve and descend to the stop or part 3 as before and it may then be again raised to the top of the standard by means of the levers, as betore. Thus for the amusement of the riders they may alternately teeter or revolve as suits their pleasure.

These revolving teeter-boards are made in various sizes to adapt them to the places of use, the smaller ones to be used indoors and on verandas being about seven feet in length from end to end of the board.

Modifications and changes in the matter of detail may be made in these structures without departing from the spirit of the invention or sacrificing any of its advantages.

What I claim as new is z- 1. A standard, tracks thereon, a board normally horizont-al, means for oscillating the board vertically and means constructed and arranged to shift from one track to the other alternately as the board is vertically oscillated.

2. A standard, tracks thereon, a board normally horizontal, means for oscillating the board vertically, means constructed and arranged to shift from one track to the other alternately as the board is vertically oscillated, and means constructed to move said board upward on said standard simultaneously with its oscillation.

3. A vertical standard having a spiral track, a board supported thereon, and means for causing the board to oscillate and to climb step by step on said spiral track.

4l. A vertical standard having a spiral track, a board supported thereon, means for causing the board to oscillate and to climb step by step on said spiral track, and means coperating with said spiral track whereby the board automatically revolves and moves downward to its lowermost position.

5. A vertical standard having a spiral track, a board supported thereon, means for causing the board to oscillate, and to climb step by step on said spiral track, means cooperating with said track whereby the board automatically revolves and moves downward to its lowermost position, and a stop for arresting the board in its downward and revolving motions.

In a device of the character stated, a standard with a spiral track, a teeterboard divided with adjacent ends upon opposite sides of said standard, and wheels carried by adjacent ends thereof and engaging said track.

7. In a device of the character stated, a standard with a spiral track, a teeter-board divided with adjacent ends upon opposite sides of said standard, wheels carried by adjacent ends thereof and engaging said track, and pendent pivoted supports for said wheels.

8. In a device of the character stated, a standard with a spiral track, a teeter-board divided with adjacent ends upon opposite sides of said standard, wheels carried by adjacent ends thereof and engaging said track, pendent pivoted supports for said wheels, and springs bearing against said pendent supports.

9. In a device of the character stated, a standard with a spiral track, a teeter board divided, with adjacent ends upon opposite sides of said standard, wheels carried by adjacent ends thereof and engaging said track,

pendent pivoted supports for said wheels, springs bearing against said pendent supports, and levers for shifting the position of said board for lifting said wheels alternately step by step.

l0. In a device of the character stated, a standard with a spiral track, a teeter-board divided with adjacent ends upon opposite sides of said standard, )ivoted pendent supports carried by adjacent ends of the board, grooved wheels carried by said supports for engaging said track, springs bearing against said supports, levers for shifting the position of said boaid for lifting said wheels step by step, and a stop on said standard for limiting the movement of the board. Y

l1. A standard having a spii'al track, a `duplex sleeve .movable over said bearing, a. board separated with adjacent ends upon opposite sides of the sleeve and rollers pendent from adjacent ends of said board and engageable with said track intermediate the parts 'of said sleeve.

l2. A standard having a spiral track, a duplex sleeve movable over said bearing, a board separated with adjacent ends upon opposite sides of the sleeve, rollers pendent from adjacent ends of said board and engageable with said track intermediate the parts of said sleeve, and springs on the under side of said board engaging the supports of said rollers.

13. A standard having a spiral track, a board, pivots therefor, rollers carried by said board and engaging said track, andmeans for actuating said board and rollers to oscillate the board on the bearings of the rollers and simultaneously turn the same on Isaid pivots.

let. A standard having a spiral track,` a

duplex sleeve about the same, a board fulcruined on the upper portion of said sleeve, rollers carried by .Said board andv engaging said track, and levers fulcrumed on said board andl connected with the lower portion of said sleeve.v Y

A standard having aspiral track, a

duplex sleeve about the same, a board ful- -crumed on the upper portion of said sleeve, f

rollers carriedby said board and engaging said track, levers fulcrumed on said board and connected with the lower portion ofsaid sleeve, and springs on said board bearing f against the supports of the rollers. K

16. In a device of the character described, a board, means'for mounting the same toV oscillate on horizontal pivots, aspiral track, means on said board engaging said track,

and means constructed to cause said board to oscillate, and toY simultaneously revolve andmove in -avertical downward direction. 

